diff --git a/src/LIB/SURCOUCHE/src/mode_netcdf.f90 b/src/LIB/SURCOUCHE/src/mode_netcdf.f90
index d6568ce5da774dc8d8b0c5a6a38fc723afeed3a4..1c039e8d18b614bea7d3ae143fabfad2ddd0bda6 100644
--- a/src/LIB/SURCOUCHE/src/mode_netcdf.f90
+++ b/src/LIB/SURCOUCHE/src/mode_netcdf.f90
@@ -282,7 +282,7 @@ IF (TRIM(TPFILE%CFORMAT)/='NETCDF4' .AND. TRIM(TPFILE%CFORMAT)/='LFICDF4') RETUR
 CALL PRINT_MSG(NVERB_DEBUG,'IO','IO_WRITE_HEADER_NC4','called for file '//TRIM(TPFILE%CNAME))
 !
 IF (TPFILE%LMASTER)  THEN
-  ISTATUS = NF90_PUT_ATT(TPFILE%NNCID, NF90_GLOBAL, 'Conventions', 'CF-1.6')
+  ISTATUS = NF90_PUT_ATT(TPFILE%NNCID, NF90_GLOBAL, 'Conventions', 'CF-1.7')
   IF (ISTATUS /= NF90_NOERR) CALL HANDLE_ERR(ISTATUS,__LINE__,'IO_FILE_WRITE_HEADER[NF90_PUT_ATT]')
 
 !title